2487686 has 4 divisors (see below), whose sum is σ = 3731532. Its totient is φ = 1243842.

The previous prime is 2487677. The next prime is 2487691. The reversal of 2487686 is 6867842.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621920 + ... + 621923.

It is an arithmetic number, because the mean of its divisors is an integer number (932883).

2^2487686 is an apocalyptic number.

2487686 is a deficient number, since it is larger than the sum of its proper divisors (1243846).

2487686 is a wasteful number, since it uses less digits than its factorization.

2487686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243845.

The product of its digits is 129024, while the sum is 41.

The square root of 2487686 is about 1577.2399944206. The cubic root of 2487686 is about 135.4976783687.

It can be divided in two parts, 248 and 7686, that multiplied together give a triangular number (1906128 = T₁₉₅₂).

The spelling of 2487686 in words is "two million, four hundred eighty-seven thousand, six hundred eighty-six".